Estes ES1602 B4-4 Rocket Motors Pack of 3

Estes B4-4 Rocket Motors Pack of 3 ES1602
Safe design, precise manufacturing and strict engineering tolerances have made Estes model rocket engines the standard in the industry. Estes engines are safe and reliable, proven in over 50,000,000 launches!
Estes Solid Fuel Rocket Engine B4-4, pack of 3.